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WGU C165 EXAM INTEGRATED PHYSICAL SCIENCES OA
EXAM 1 AND 2 ALL 300 QUESTIONS AND CORRECT
DETAILED SOLUTIONS LATEST 2024-2025 JUST
RELEASED
WGU C165 OA EXAM INTEGRATED PHYSICAL SCIENCES OA EXAM 1
Q: The kinetic theory of gases is based on the assumption that the molecules that form the gas
are in random motion and bounce off the walls of their container and each other as if they
were billiard balls. The forces between real molecules are more complicated.
This is an example of: - ANSWER IS STARED-a. using a model *
b. formulating a hypothesis
c. carrying out an observational study
d. performing a field study
Q: Why can't astronomers conduct a scientific study to determine which visible star, other than
our sun, is the nicest? - ANSWER IS STARED-a. Existing telescopes are not powerful enough
b. There is no way to prove any answer wrong *
c. The Hubble telescope has better uses
d. A project of that sort can not get funding
Q: In 1811, physicist Amedo Avogadro proposed that the same volume of two different gases at
the same temperature and pressure contain the same number of molecules. His proposal
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,Page 2 of 97
received little attention until the 1850's, when chemist Stanislao Cannizzaro, in particular,
argued that Avogadro's idea agreed with all the physical and chemical laws discovered up to
that time.
Today, Avogadro's statement about gases is sometimes referred to as "Avogadro's hypothesis"
or "Avogadro's law. Which statement describes when each of those two terms would be MOST
accurately applied? - ANSWER IS STARED-a. It is most accurately described as a law throughout
b. It is most accurately described as a hypothesis throughout
c. It is most accurately described as a hypothesis starting in 1811, but a law after the 1850's *
d. It is most accurately described as a law starting in 1811, but a hypothesis after the 1850's
Q: Albert Einstein developed a detailed and far-reaching explanation of gravity being caused by
the bending of space and time by the presence of matter. This explanation made far-reaching
predictions of phenomena later confirmed, such as the bending of the path of light when the
path passed close by a star. It is currently the basis for many phenomena observed in
astronomy.
Einstein's explanation would be MOST accurately described as a: - ANSWER IS STARED-a.
hypothesis
b. theory *
c. law
d. fact
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,Page 3 of 97
Q: Which of these describes a statement that has usually NOT yet been tested? - ANSWER IS
STARED-a. law
b. model
c. theory
d. hypothesis *
Q: Which of these is generally regarded by scientists to be the basis for deciding issues in
science? - ANSWER IS STARED-a. the reputation of the researchers for careful work
b. empirical evidence including experiments and observations *
c. personal faith in the particular idea proposed
d. whether the idea is the simplest one the researcher can think of
Q: Which statement MOST accurately describes how our present knowledge of the structure of
atoms, as being composed of electrons, protons, and neutrons, developed? - ANSWER IS
STARED-a. Our modern understanding of atoms was provided by Dalton's explanation of
chemical laws.
b. Our understanding of atoms came from the ancient Greeks, who postulated that atoms were
composed of electrons, neutrons, and protons. *
c. Our understanding of atoms came piece by piece from many different scientific researchers.
d. Our understanding of atoms was provided by Rutherford's experiment that led him to
propose a planetary model
3
, Page 4 of 97
Q: The origin of water on Earth is not yet fully understood. To test one of the hypotheses,
scientists launched a gigantic observational balloon to the height of almost 130,000 feet to
measure the amounts of water in comets and asteroids based on the light reflected from these
objects. The science BEST suited to calculating the forces required to launch the balloon to the
required altitude is: - ANSWER IS STARED-a. Physics *
b. Earth Science
c. Chemistry
d. Life Science
Q: The sun produces its energy through nuclear fusion reactions, in which smaller nuclei are
combined to produce larger nuclei. The forces responsible for the nuclear fusion are called
nuclear forces. The physical science that studies nuclear forces is: - ANSWER IS STARED-a.
Chemistry
b. Physics *
c. Earth Science
d. Zoology
Q: The observational balloon is filled with helium and vented into the atmosphere. The height it
reaches depends on the changes of atmospheric pressure during the day and night cycle. The
science BEST for studying this daily warming and cooling of the atmosphere is: - ANSWER IS
STARED-a. Physics
4
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